Measuring device.



J. A. IFKOWITSCH.. MBASUBING DEVICE. nrmculon FILED un. 24, 1913.

1,083,684. Patented .1m 6,1914.

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J. A. IFKWITSCH.

MEASURING DEVICE.

APPLIUATION FILED un. 24. 1913.

1,083,684. Patented Jam 6, 1914.

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JoHN A. IEKoWITscH, or cnIcaGo, ILLINOIS.

MEASURING DEVICE.

Specification of Letters Patent.

Patented Jan. 6, 1,914.

Application filed January 24, 1913. Serial No. 743,933.

To all whom it may concern;

Be it known that I', JOHN A. IrIrowrrsoH, a citizen of the UnitedStates, and a resident of the city of Chicago, county of Cook, and Stateof Illinois, have invented certain new and useful Improvements inMeasuring Devices, of which the following is a specification.

My invention relates to improvements in measuring devices and has forits object the production of a measuring device through the medium ofwhich measurements may be taken with ease and expedition.

A further object is the production of a measuring device which will bedurable and economical in construction, easily operated, and'one whichwill be eiiicient in use.

Other objects will appear hereinafter.

The invention consists in the combinations and arrangements of partshereinafter described and claimed.

The invention will be best understood by reference to the accompanyingdrawings forming a part of this specification, and in which,

Figure 1 is a front elevation of a measuring device embodying myinvention, Fig. 2 is' a side elevation thereof, Fig. 3 is a view similarto Fig. 1, a portion of the casing being broken away to exposeunderlying parts, and Fig. 4 is an enlarged section taken onsubstantially line :v4-,x4 of Fig. 3.

rThe preferred form of construction as illustrated in the drawingscomprises a segmental casing 1 which is secured by means of a rivet 1 toa frame member 2. Arranged in the casing 1 is a main disk 3 which isixed upon a shaft 4 the respective extremities of which are rotatablymounted in the front and rear walls of the casing 1 as well as in theouter extremity of an extension-5 of the member 2. Also arranged in thecasing 1 is a disk 6 fixed to a shaft 7 which is rotatably mounted atits respective ends in the rear wall of said casing and the extension 5as clearly shown in Fig. 4. The periphery of the disr 6 is serrated asshown to form a gear 8 why'ch meshes with a pinion 9 formed at the rearend of the shaft 4, the arrangement being such that when disk 3 isrotated disk 6 will be simultaneously rotated but at a reduced speed.

Rotat-ably mounted upon the shaft 4 is a disk /10 the periphery of whichis also serrated to form a gear 11 which meshes with a pinion 12formedat the inner end of the shaft 7. The arrangement is such, as will beobserved, that upon rotation of the disk 6 as above mentioned the disk10 will be simultaneously rotated but ata reduced speed. In other wordsthe arrangement is such that upon rotation of the disk 3 the disks 6 and10 will be driven thereby but at reduced speeds, the disk 6 being turnedthrough one complete rotation upon twenty turns of the disk 3 and thedisk 10 being turned through one complete rotation upon twenty rotationsof the disk 6.

The circumference of the disk 3 is preferably one foot or twelve inches,the front side thereof being graduated as shown to indicate inches.Consequently upon each rotation of the disk 3 one foot will be measured,and so that disks 6 and 10 which are graduated to register the number ofrotations of said disk 3, also register the number of feet which aremeasured. The casing 1 is cut away at 13 in order to expose thegraduations of the disks 6 and 10 as shown in Fig. 1.

The casing 1 is segmental in form in order to expose aportion of theperiphery of the disk 3 for contact with the article to be measured inthe manner hereinafter described. A segmental sheath 14 is rockinglymounted upon said casing for covering said exposed portion of disk 3when the device is not'in use. A spring lip 15 is provided at oneextremity of the sheath 14 for engagement with a recess 16 provided uponan extension 17 of the casing 1 in order to releasably lock the sheath14 in operative or closing posit-ion, the'closing position of the sheath14 being shown in dotted lines in The outer edge of the extension 17serves as a stop in'using the device for properly positioning the sameat the lcommencement of themeasuring operation, said edge of said stopbeing disposed in a line tangent with the disk 3 and which extendsparallel with the handle of the device hereinafter mentioned. Theextremity 18 of the casing,

-when the sheath is in uncovering position ing hingedly connected atl.21 so,as to' permit of the non-folding of the sections 19.

Said sections 19 and 19"together withthe edge 17 of the extension 17 aregraduated as shown for use in measuring in the usual manner. lhe edge 17is disposed at right angles to the adjoining edges of the sections 19and 19 so that said edges constitute a square which may be used in theordinary manner.

In using the device the sheath 14 is first rocked back to expose aportion of the peri phery of disk 3, as shown in Fig. 1. The

periphery of the disk 3 is then placed against the surface which itisdesired to measure and the device is'drawn along said surface with theperiphery of disk 3 contacting therewith. rlhe measurement of thesurface engaged will evidently he measured since upon each rotation ofthe disk 3 one foot will have been measured, the number of rotations ofsaid disk and hence the number of feet measured being indicated by disks6 and 10. In the commencement of the measuring the device is positionedwith the handle 19 extending perpendicular t0 the surface which it isdesired to measure, the stop 18 as Well as theperiphery of the disk 3heilig in contact With the surface with the handle in this position.'.lhe disk 3 is positioned with the numeral l2 registering with thepoint of tangency of the disk 3 and the surface engaged at the end ofsuch surface, and thus the friction of a foot or inch will be shown atthis point when the extremity of the surface measured is reached.

Where it is desired to measure from an internal corner the disk isturned to the left a distance corresponding to the difference betweenone fourth the circumference and the radius of disk 3, which in thisinstance is approximately one and three thirty-sec ond inches. The outeredge of the stop 18 together with the adjacent periphery of the disk arethen placed in contact With the surface it is desired to measure, thekperiphery of the disk being pressed into contact with the other surfaceof the corner. The operation from this point on is the same as beforedescribed in the measuring operation.

A measuring device of the construction set forth will be found accurateand through its employment measurements may be taken with ease andexpedition. 4

While I have illustrated and described `rying.; my invention intoeffect, this is capable of variation and modification Without departingfrom the spirit of the invention. I, therefore, do not wish to belimited to the precise details of construction set forth, but desire toavail myself of such variations vand modifications as come withinpthescope of the appended claims.

Having described my inventiony what I clailn as new and desire to secureby Letters Patent is:

1. A measuring device comprising a easing; a graduated disk rotativelymounted in said casing and having a portion extending therefrom; and astop on said casing in a Iline tangent to a point in the periphery ofsaid disk, said stop being adaptedA to facili'- tate positioning thedevice in operative condition, substantially as described'.

ing; a graduated disk rotativel mounted in said casing and having aportlon extending therefrom; and a stop on said casing in a line tangentto a point in the periphery of said disk, said stop being adapted tofacilitate positioning the device in .operative condition when thecasing is in one p0- sition; a second sto on said casing in a linetangent to a secon point of the periphery of said disk adapted tofacilitate positioning the device in operative condition when saidcasing is in a second position, substantially as described.

3. A measuring device comprising a graduated disk; a casing in whichsaid disk'is rotatably mounted so as to expose a portion of theperiphery of said disk; a handle secured to and projecting from saidcasing; and stops on said casing disposed one in a line tangent to. saiddisk extending parallel with said handle and the other disposed in aline tangent. With said disk extending at right angles to said handle,said stops facilitating positioning the device vin operative positionssubstantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.

v JOHN A.,IFKOWITSCH. Witnesses:

JOSHUA R. I-I. Po'r'rs, B. G. RICHARDS.

75 2. A measurmg device eomprlsmg a cas--

